Pieck, Daniela; Thölen, Claudia; Lehners, Carola; Voß, Daniela; Zielinski, Oliver: Reference measurements of surface waters during the RV MARIA S. MERIAN cruise MSM97/2 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967466 (dataset in review)
Abstract:
Reference measurements of surface waters were collected during the RV MARIA S Merian cruise MSM97/2 (12.12.2020 - 23.12.2020, Emden, Germany - Emden Germany). Accompanying the underway measurements of the DAM transit cruise water samples were taken from the CTD and the onboard measurement containers (RSWS) for later validation of bio-optical water properties. Turbidity and fluorescent dissolved organic matter (fDOM) were measured directly onboard via handheld instruments (see methods/device) whereas suspended particular matter (SPM) and chlorophyll a (Chl a) were filtered onboard on glas fibre filters (GFF, 47mm, 0,7 µm) and frozen at -25°C and -80°C immediately after sampling. Values were determined in the lab after the cruise within 2 months, for SPM via gravimetric analysis and for Chl a according to EPA Method 445. Water samples for nitrate analysis were taken and frozen at -25°immediately after sampling for later lab analysis according to Grasshoff et al. (1999).
Related to:
Becker, Marius; Betz, Maximilian; Damaske, Daniel; Kopte, Robert; Pieck, Daniela; Schlundt, Michael; Wiemer, Gauvain (2022): DAM-Underway Acquisition and Transfer, Cruise No. MSM97/2, 12.12.2020 - 24.12.2020, Emden - Emden (Germany). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM97/2, 31 pp, https://doi.org/10.48433/cr_msm97_2
Becker, Marius; El-Ama, André (2022): Continuous bio-optical measurements of chloropyll a and turbidity along RV MARIA S. MERIAN cruise MSM97/2. PANGAEA, https://doi.org/10.1594/PANGAEA.942197
Pieck, Daniela; Thölen, Claudia; Voß, Daniela; Zielinski, Oliver; Becker, Marius (2024): Continuous optical measurements of absorbance for the calculation of optical Nitrate along RV MARIA S. MERIAN cruise MSM97/2. PANGAEA, https://doi.org/10.1594/PANGAEA.967381
References:
Arar, E J; Collins, G B (1997): Method 445.0 In Vitro Determination of Chlorophyll a and Pheophytin ain Marine and Freshwater Algae by Fluorescence. U.S. Environmental Protection Agency, Washington, DC, 1997, https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=NERL&dirEntryId=309417 (M445_0.PDF)
Grasshoff, Klaus; Kremling, Klaus; Ehrhardt, M (1999): Methods of Seawater Analysis, Third Edition. Wiley-VCH, https://doi.org/10.1002/9783527613984.fmatter
Coverage:
Median Latitude: 60.052402 * Median Longitude: 2.658221 * South-bound Latitude: 53.814375 * West-bound Longitude: -1.892083 * North-bound Latitude: 66.744148 * East-bound Longitude: 7.784210
Date/Time Start: 2020-12-13T14:49:00 * Date/Time End: 2020-12-22T18:20:00
Minimum DEPTH, water: 6.5 m * Maximum DEPTH, water: 6.5 m
Event(s):
MSM97/2_6-1 * Latitude: 54.394860 * Longitude: 6.233750 * Date/Time: 2020-12-14T12:09:36 * Elevation: -40.7 m * Location: North Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM97/2_7-1 * Latitude: 55.573590 * Longitude: 4.034650 * Date/Time: 2020-12-14T21:06:12 * Elevation: -37.0 m * Location: North Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
MSM97/2_8-1 * Latitude: 64.577690 * Longitude: -0.491460 * Date/Time: 2020-12-16T17:51:10 * Elevation: -2727.8 m * Location: Norwegian Sea * Campaign: MSM97/2 (GPF 20‐2_062) * Basis: Maria S. Merian * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Thölen, Claudia | |||
| 2 | DATE/TIME | Date/Time | Thölen, Claudia | Geocode | ||
| 3 | LATITUDE | Latitude | Thölen, Claudia | Geocode | ||
| 4 | LONGITUDE | Longitude | Thölen, Claudia | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Thölen, Claudia | Geocode – Water sampling from CTD or measurement container | |
| 6 | Speed | Speed | kn | Thölen, Claudia | From DShip, indicating station or transit | |
| 7 | Suspended particulate matter | SPM | mg/l | Thölen, Claudia | Gravimetric analysis | Lab analysis |
| 8 | Chlorophyll a | Chl a | µg/l | Thölen, Claudia | Fluorometer, Turner Designs, Trilogy 7200-002 [EPA Method 445.0] | Lab analysis |
| 9 | Nitrate | [NO3]- | µmol/l | Thölen, Claudia | Methods of Seawater Analysis, Third Edition (Grasshoff et al., 1999) | Lab analysis |
| 10 | Turbidity (Formazin nephelometric unit) | Turbidity | FNU | Thölen, Claudia | Turbidity sensor, Hach Lange, TSS PORTABLE LXV322.99.00001 | Handheld device |
| 11 | Fluorescence, dissolved organic matter | fDOM | ppb (QSE) | Thölen, Claudia | Handheld Fluorometer, Turner Designs, AquaFluor | Handheld device |
| 12 | Site | Site | Thölen, Claudia | Site of sampling: CTD or measurement container MC1 or MC2 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
170 data points